公开(公告)号：US3900735A

公开(公告)日：1975-08-19

申请号：US45548574

申请日：1974-03-27

Applicant: HOECHST AG

Inventor： JAHN HELMUT

IPC: G03G15/02 ,  G03G15/00

CPC classification number: G03G15/0291

Abstract: Corona discharge apparatus having a plurality of discharge elements provided with a plurality of resistors for connecting respective discharge elements, or groups of discharge elements, to a voltage source to result in more uniform corona discharge from the discharge elements.

公开(公告)号：US3910459A

公开(公告)日：1975-10-07

申请号：US29225472

申请日：1972-09-25

Applicant: HOECHST AG

Inventor： BOCK HARTMUT ,  STIEGER HELMUT ,  JAHN HELMUT ,  WINKELMANN DETLEF

IPC: G01N27/60 ,  G03G15/08 ,  B67D5/08 ,  G03G15/16

CPC classification number: G01N27/60 ,  G03G15/0851 ,  G03G15/0891 ,  Y10S222/01

Abstract: A method and apparatus for measuring or measuring and replacing the amount of toner consumed in an electrophotographic reproduction machine wherein the method involves measuring an electrical value corresponding to the charge transferred in a copying operation by the toner to the photoconductor. The electrical value measured is the voltage at a high-resistance resistor through which current flows to the ground from an element charged with a charge corresponding to the transferred charge or the voltage at a capacitor charged from an element that is itself charged with a charge corresponding to the transferred charge or the charge flow from or to the conductive carrier material of the photoconductor. The corresponding charge is the residual charge of carrier material from which toner has been withdrawn by the photoconductor. In response to the measurement an amount of toner is dispensed to the machine which may be intermittent after and in accordance with integration of the charge transferred during the interval between dispensing operations. The apparatus includes an insulated electrically conductive element to receive a charge of the same magnitude as the charge passed to the photoconductor and a measuring instrument which is connected to a toner dispensing device dependent for delivery of toner on the measurement. The conductive element is composed of one or more well insulated deflector sheets fitted in a cascade developing unit wherein the sheets are positioned below the developing zone of the unit so that the spent developer trickles over the sheets beyond the developing zone. The apparatus may also include two toner dispensing devices one of which is dependent upon the number of copies and the other is dependent upon the charge on a capacitor.

Abstract translation: 一种用于测量或测量和替换在电子照相再现机中消耗的调色剂量的方法和装置，其中所述方法包括测量与通过调色剂复印到感光体的复印操作中转印的电荷相对应的电值。 所测量的电气值是电流从高电阻电阻流过的电流，从电荷流过对应于转移电荷的电荷的元件或电容器充电的电容器，该元件本身带有相应的电荷 转移到光电导体的导电载体材料的转移电荷或电荷流。 相应的电荷是由光电导体从其中抽出调色剂的载体材料的剩余电荷。 响应于测量，调色剂的量被分配到机器，其可以在分配操作之间的间隔期间并且根据在分配操作之间的间隔期间传送的电荷的积分而间歇。 该装置包括绝缘导电元件，以接收与传递到光电导体的电荷相同大小的电荷;以及测量仪器，其连接到依赖于在测量上传送调色剂的调色剂分配装置。 导电元件由安装在级联显影单元中的一个或多个良好绝缘的偏转片构成，其中片位于单元的显影区下方，使得废显影剂在片材上超过显影区域。 该设备还可以包括两个调色剂分配装置，其中一个取决于副本数量，另一个取决于电容器上的电荷。

公开(公告)号：FI84403C

公开(公告)日：1991-11-25

申请号：FI862630

申请日：1986-06-19

Applicant: HOECHST AG

Inventor： JAHN HELMUT ,  KARGER WALDEMAR

IPC: G01N33/49 ,  G01N15/00 ,  G01N15/12 ,  G01N33/487

公开(公告)号：AT61669T

公开(公告)日：1991-03-15

申请号：AT86108031

申请日：1986-06-12

Applicant: HOECHST AG

Inventor： JAHN HELMUT ,  KARGER WALDEMAR

IPC: G01N33/49 ,  G01N15/00 ,  G01N15/12 ,  G01N33/487

公开(公告)号：BR8602869A

公开(公告)日：1987-02-10

申请号：BR8602869

申请日：1986-06-20

Applicant: HOECHST AG

Inventor： JAHN HELMUT ,  KARGER WALDEMAR

IPC: G01N33/49 ,  G01N15/00 ,  G01N15/12 ,  G01N33/487

Abstract: The deformability measurement chamber is subdivided by a foil into two chamber spaces. The foil has a passage opening, the diameter of which is smaller than the diameter, at rest, of a red blood corpuscle. A static pressure gradient exists between the two chamber spaces, so that a flow takes place from one chamber space to the other. In the region of the passage opening there is situated on each side of the foil an electrode, which is connected to an alternating voltage source. In order to achieve a measurement signal which is approximately one order of magnitude greater, at a given alternating voltage frequency, a current-measuring operational amplifier is disposed in the connecton of one electrode to the voltage source.

公开(公告)号：FI862630A0

公开(公告)日：1986-06-19

申请号：FI862630

申请日：1986-06-19

Applicant: HOECHST AG

Inventor： JAHN HELMUT ,  KARGER WALDEMAR

IPC: G01N33/49 ,  G01N15/00 ,  G01N15/12 ,  G01N33/487 ,  G01N

Abstract: The deformability measurement chamber is subdivided by a foil into two chamber spaces. The foil has a passage opening, the diameter of which is smaller than the diameter, at rest, of a red blood corpuscle. A static pressure gradient exists between the two chamber spaces, so that a flow takes place from one chamber space to the other. In the region of the passage opening there is situated on each side of the foil an electrode, which is connected to an alternating voltage source. In order to achieve a measurement signal which is approximately one order of magnitude greater, at a given alternating voltage frequency, a current-measuring operational amplifier is disposed in the connecton of one electrode to the voltage source.

公开(公告)号：DE3678056D1

公开(公告)日：1991-04-18

申请号：DE3678056

申请日：1986-06-12

Applicant: HOECHST AG

Inventor： JAHN HELMUT ,  KARGER WALDEMAR

IPC: G01N33/49 ,  G01N15/00 ,  G01N15/12 ,  G01N33/487

Abstract: The deformability measurement chamber is subdivided by a foil into two chamber spaces. The foil has a passage opening, the diameter of which is smaller than the diameter, at rest, of a red blood corpuscle. A static pressure gradient exists between the two chamber spaces, so that a flow takes place from one chamber space to the other. In the region of the passage opening there is situated on each side of the foil an electrode, which is connected to an alternating voltage source. In order to achieve a measurement signal which is approximately one order of magnitude greater, at a given alternating voltage frequency, a current-measuring operational amplifier is disposed in the connecton of one electrode to the voltage source.

公开(公告)号：NO166382B

公开(公告)日：1991-04-02

申请号：NO862469

申请日：1986-06-20

Applicant: HOECHST AG

Inventor： JAHN HELMUT ,  KARGER WALDEMAR

IPC: G01N15/00 ,  G01N15/12 ,  G01N33/49 ,  G01N33/487 ,  G01N27/02

Abstract: The deformability measurement chamber is subdivided by a foil into two chamber spaces. The foil has a passage opening, the diameter of which is smaller than the diameter, at rest, of a red blood corpuscle. A static pressure gradient exists between the two chamber spaces, so that a flow takes place from one chamber space to the other. In the region of the passage opening there is situated on each side of the foil an electrode, which is connected to an alternating voltage source. In order to achieve a measurement signal which is approximately one order of magnitude greater, at a given alternating voltage frequency, a current-measuring operational amplifier is disposed in the connecton of one electrode to the voltage source.

公开(公告)号：FI862630A

公开(公告)日：1986-12-22

申请号：FI862630

申请日：1986-06-19

Applicant: HOECHST AG

Inventor： JAHN HELMUT ,  KARGER WALDEMAR

IPC: G01N33/49 ,  G01N15/00 ,  G01N15/12 ,  G01N33/487 ,  G01N

Abstract: The deformability measurement chamber is subdivided by a foil into two chamber spaces. The foil has a passage opening, the diameter of which is smaller than the diameter, at rest, of a red blood corpuscle. A static pressure gradient exists between the two chamber spaces, so that a flow takes place from one chamber space to the other. In the region of the passage opening there is situated on each side of the foil an electrode, which is connected to an alternating voltage source. In order to achieve a measurement signal which is approximately one order of magnitude greater, at a given alternating voltage frequency, a current-measuring operational amplifier is disposed in the connecton of one electrode to the voltage source.

公开(公告)号：DK292286D0

公开(公告)日：1986-06-20

申请号：DK292286

申请日：1986-06-20

Applicant: HOECHST AG

Inventor： JAHN HELMUT ,  KARGER WALDEMAR

IPC: G01N33/49 ,  G01N15/00 ,  G01N15/12 ,  G01N33/487 ,  G01N

Abstract: The deformability measurement chamber is subdivided by a foil into two chamber spaces. The foil has a passage opening, the diameter of which is smaller than the diameter, at rest, of a red blood corpuscle. A static pressure gradient exists between the two chamber spaces, so that a flow takes place from one chamber space to the other. In the region of the passage opening there is situated on each side of the foil an electrode, which is connected to an alternating voltage source. In order to achieve a measurement signal which is approximately one order of magnitude greater, at a given alternating voltage frequency, a current-measuring operational amplifier is disposed in the connecton of one electrode to the voltage source.